I just checked the elections. I saw that they are held on 2011 and 2012 and never again. Why?
How often are moderator elections held? explains this. Short summary:
- they take place at any frequency, depending on demand
- mods are elected "for life-time" (as long as they volunteer – they of course can "exit" on their wish) or until they're "absent for six months"
So obviously, our mods still can cope, there's no demand, and nobody left ;)